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1825J2K00821KCR
Part Number 1825J2K00821KCR
Manufacturer Knowles Syfer
Description CAP CER 820PF 2KV C0G/NP0 1825
Quantity Available 25828 pcs new original in stock.
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Datasheets 1.1825J2K00821KCR.pdf2.1825J2K00821KCR.pdf
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Technical Information of 1825J2K00821KCR
Manufacturer Part Number 1825J2K00821KCR Category Capacitors
Manufacturer Knowles Syfer Description CAP CER 820PF 2KV C0G/NP0 1825
Package / Case 1825 (4564 Metric) Quantity Available 25828 pcs
Voltage - Rated 2000V (2kV) Tolerance ±10%
Thickness (Max) 0.098' (2.50mm) Temperature Coefficient C0G, NP0 (1B)
Size / Dimension 0.177' L x 0.252' W (4.50mm x 6.40mm) Series -
Ratings - Package / Case 1825 (4564 Metric)
Package Tape & Reel (TR) Operating Temperature -55°C ~ 125°C
Mounting Type Surface Mount, MLCC Lead Style -
Lead Spacing - Height - Seated (Max) -
Features - Failure Rate -
Capacitance 820 pF Base Product Number 1825J
Applications General Purpose  
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Frequently Asked Questions

  • How does the voltage rating of the 1825J2K00821KCR capacitor influence its performance in circuits requiring high-voltage isolation? The 2000V rated voltage of the 1825J2K00821KCR provides substantial margin for handling transient spikes common in industrial power supplies or automotive ECUs, where dielectric stress could otherwise lead to premature failure if operated near rated limits without proper snubbing networks.
  • What benefits does the C0G/NP0 temperature coefficient provide when integrating the 1825J2K00821KCR into temperature-variable environments? The C0G/NP0 (1B) temperature coefficient of the 1825J2K00821KCR ensures capacitance drift remains minimal across -55°C to 125°C, preserving consistent timing in crystal oscillators or maintaining flat frequency response in IF filters where even small shifts would degrade signal integrity.
  • In what circuit configurations is the 820 pF capacitance value of the 1825J2K00821KCR particularly effective for noise suppression? The 820 pF capacitance of the 1825J2K00821KCR effectively suppresses high-frequency noise in analog front-ends of data acquisition systems or as bypass elements in low-power DC-DC converters, where its value creates appropriate RC time constants without loading sensitive nodes excessively.
  • How does the ±10% tolerance of the 1825J2K00821KCR affect design margins in precision timing or analog circuits? The ±10% tolerance of the 1825J2K00821KCR requires engineers to incorporate wider guard bands in filter cutoff calculations or phase-shift networks, often leading to iterative PCB layout adjustments to maintain overall system accuracy within tighter tolerances.
  • Why might engineers choose the 1825J2K00821KCR over smaller package options for high-reliability applications? The 1825 (4564 Metric) package dimensions of the 1825J2K00821KCR, including its 4.50mm length and 6.40mm width, afford greater physical separation that enhances voltage standoff and eases thermal management compared to compact 1206 or 0805 footprints under sustained high-voltage bias.
  • What operating conditions should be avoided when using the 1825J2K00821KCR to prevent performance degradation? Continuous operation above the 125°C upper limit of the 1825J2K00821KCR accelerates insulation breakdown and increases leakage current, particularly in enclosed equipment subjected to self-heating from nearby high-current traces.
  • How does the surface mount MLCC construction of the 1825J2K00821KCR impact its suitability for automated pick-and-place assembly? The surface mount MLCC form of the 1825J2K00821KCR supports high-speed reflow processes with its 0.098" (2.50mm) maximum thickness, minimizing solder paste displacement risks while maintaining consistent placement repeatability in dense multi-layer boards.
  • In comparison to lower voltage C0G capacitors, how does the 2kV rating of the 1825J2K00821KCR change selection criteria for high-voltage power supplies? The elevated 2000V rating of the 1825J2K00821KCR relaxes derating curves relative to standard 1kV parts, allowing tighter coupling in boost converters but necessitating careful accounting for partial discharge risks at altitudes above sea level.
  • What considerations come into play regarding the 0.098" (2.50mm) thickness of the 1825J2K00821KCR in multilayer board stacking? The 2.50mm seated height of the 1825J2K00821KCR must align with adjacent component clearances during stencil design to prevent solder bridging, especially in fine-pitch assemblies where cumulative stack height could affect coplanarity.
  • For general purpose applications, how suitable is the 1825J2K00821KCR in industrial control systems operating at elevated temperatures? The combination of C0G stability and 125°C rating in the 1825J2K00821KCR supports reliable filtering roles in PLC input stages, though slight voltage derating may extend mean time to failure under continuous 85°C+ ambient conditions.
  • How does the tolerance of the 1825J2K00821KCR compare to that of similar 1825 package capacitors from competitors in terms of circuit predictability? The ±10% tolerance shared by the 1825J2K00821KCR falls within typical high-voltage MLCC ranges, yet may demand more conservative margin than ±5% variants from alternative vendors when exact impedance matching is required in resonant tank circuits.
  • When migrating from a different dielectric capacitor to the 1825J2K00821KCR in a filtering application, what key differences in behavior should be expected? Transitioning to the 1825J2K00821KCR from an X7R part would eliminate voltage-dependent capacitance shifts and improve long-term stability, though the resulting lower ESR might alter phase response in feedback loops unless compensated by added series resistance.
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